Wood-turning machine.



S. PAQUETTE.

WOOD TURNING MACHINE.

APPLICATION men AUG.19, 1915.

1,172,040. 4 Patented Feb.15, 1916.

6 SHEETS-SHEET l- I Y INVENTOR, n Javzad Pdfzzeiie,

A TTORNE Y.

THE COLUMBIA PLANOGRAPH C0.. WASHINGTON, n. c.

S. PAQUETTE.

woon TURNlNG MACHINE.

APPLICATION FILED AUG. UL 1915.

1,172,040. v Patentd Febr15, 1916.

6 SHEETS-SHEET 2- WITNESSES: IN V EN TOR,

Mid/0W %WM A TTORNE Y.

THE COLUMBlA PLANOGRAPH co., WASHlNGTDN, D. c.

Jam as Z 24 M222,

s PAQUETTE. WOOD TURNING MACHINE.

ATTORNEY.

9 R ,m .m wm W 1hr V %m v m m m H I.

WITNESSES:

THE COLUMBIA PLANOGRAPH (30., WASHINGTON, D. c

Patentd Feb. 15, 1916.

a SHEETSSHEET 4.

WITNESSES: O

THE COLUMBIA PKANOGRAPH .60., WASHINGTON, D. C.

. Sx PAQUETTE. WOOD TURNING MACHINE. I

. APPLICATION FILED AUG. 19. 1915. v 1,172,040. Patented Feb. 15,1916.

' e SHEETSSHEET 5.

WITNESSES: IN V EN TOR, MAW QJZWZZZfZ Payzzdk;

v I M4 4 A TTORNE Y.

THE COLUMBIA PLANOGRAPH 150., WASHINGTON, n. c.

s PAQUETTE. WQOD TURNING MACHINE.

' APPLICATION FILED AUG.19|1915- Patented Feb. 15,1916.

6 SHEETSSHEET 6 H F w IN VENTOR, ,dkmzael Payzaeiie,

RM. m A ...H.-. Nww

. M m E w W A TTORNE Y.

THE COLUMBIA FLANOGRAPH 60-. WASHINGTON, D. C.

UN E A E PATENT nam SAMUELPAQUETTE, or onroorizn, MASSACHUSETTS.

woon-rnnivrno I MACHINE.

imo-eel Application filed August 19, 1915-. senainogiease.

T 0 all whom it may concern Be it known that I, SAMUEL Paoon'rrna citizen of the United States of Amer ca, and

resident of Chicopee, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Wood-Turning Machines, of which tlie following is a. full, clear, and exactdescription.

This invention relates to a turning machine, and more particularly to one for wood turning, and the same has been originally designed for the turning of bobbins from followed by a second cutter which in its pass further reduces the blank. The second cutter next has its return movement, it making its second cut on the blank, which is the third cut made, and the cutter which had first operated then makes its return movement for the second cut, thereby, which is.

the fourth cut on the blank and which brings it to its final shape. I i

The machine includes means for the causing of the cutters to have their movements in succession and in 'the intervals stated. The machine also includes-means for controlling the depths of' the cutsmade by the cutters; and altogether the lIlflClllIlQ'lS automatic as to all'of its operations with the exception of the operation of end'wise moving the tail spindle (which is manually done) for mounting or chucking the blank to be turned and for the removal, [when completed, of the finished bobbin or other turned piece.

The'invention is described in conjunction with the accompanying drawings and is set forth in the claims.

1n the drawings: Figure 1 is aplan view of the improved machine; Fig. 2 is a front elevation of the same; Fig. 3,is a rear elevation; Fig. 4 is a cross sectional view.-on a larger scale, taken on the line H, Fig. l,

and as seen looking in the direction of the arrow. Fig. 5 is a cross sectional view, also on a larger scale, as taken'online 5'5, Fig.- #1., 1n the direction of thearrow. Fig. 6 is a partial plan iew showing the arrangement of, one of the latches appurtenant to one of the cutter carriages. Fig. 7 is a sectional elevation as seen beyond the line 77,- Fig; 6. F g. 8 is a side view showing the squared stock or blank from WlllClI the bobbin is to be turned. Fig. '9 is aside view showing I Specification of Letters Fatent. V Patented Feb l5l, 1 91 6,

to r

the blank as partially formed after the cut- 7 t er of one carriage has-made its pass. Fig. 10 shows the blank further turned down and as accomplished by the first pass of the cutter of the second carriage. Fig. 11 shows the completed bobbin as produced by the re- 7 turn passes of the second and first cutter carriages. T V

The views, Figs. 1 to 5 inclusive are drawn from themachine with the parts thereof in the same position, that'issiich as they oocupy when the cutter carriages have both 7 completed their traverse from the head 7 toward thetail end ofthe machine.

In the drawings, 20 represents the head stock spindle mounted on the bed or tablelikeportion of the frame 21, such spindlex being constantly rotated by the belt driven pulley22. 7 a 23 represents thetail spindle whichis nonrotative but endwise slidable'toward and from the head spindle 20 through the bore of the bearing support 24 therefor. The

weighted lever "25 by link 26 connected to the spindle 23' maintains itnormally in its approached relation to the head spindle and provides means whereby through manu--x-- ally swinging the lever itis caused to have its withdrawal or. recedence away from the head spindle .forthe removal ofthe finished plece and the insert on of anew blank. 1

27 is the driving shaft for all of the mechanisms comprised in themachine, all of the I mechanisms apart from the blank centering and holding spindles'beingautomatic. The said shaft 27- is belt driven by pulley 2.8 a-nd has a worm 29 tlierecn' w'hich is in mesh; withthe worm wheel'3O aih'xedona shaft 31 at right angles to'the driving shaft 27,; and

which is arranged horizontally at right angles to the length of the ma chine and near theleft hand end of the machine as the same isviewedfromits front. The shaftBl carries a spur gear wheel 32 affixed thereon oppositewhich is a spur gear 33 of similar size and loose on'the shaft." The spur gear 32 drives an axially vertical pinion 34E rotatable in a fixed'bearing support therefor; and

sa-id pinion drives the gear wheel 33 in a direction opposite to that of the rotation of V the shaft 31.

35 represents a clutch member on thevhub',

of the spur gear 33, and 36 represents a clutch member formed on the rear vface of a collar 37 which is fastened on the'sliai'tf 31,-the clutch, members 35 and 36 being 3 spaced so as to leave room betweenlthem for the pinion 38 which is loose on'the' shaft and is movable endwise thereon. The opposite, hub portions of the pinion are made with clutch members 39 and :40, the one 39 to engage the clutch member 35 of the gear '33,: and the; clutch member l0 to engage the one 36 which is revoluble as one with the shaft 3l', and so that accordingly as to the positioning of the pinion, in clutch with either of theelements 33 or 37, the rack bar 42, which "has the teeth on its under side in mesh with the pinion will be moved longitudinally' to the rightward .or to the leftward. v

The rack bar constitutes the means for the bodily propulsion or traverses of the cutters a3 andaet which maybe in the form of gouge. chiselsior turning tools of'a common kind. These tools are mounted on blocks or i carriagesat5 and 46which are supported by,-

slidable along, and also tiltable relatively to, a roundrail47' which ranges longitudinally along the front of the machine. 1

V The carriages a5 and 46 havearched or 3 5 curved transverse arms 48 .with' weighted leverextensions 49, each of ;which is pro- 7 vi'ded with two adjustable and more or less nearly'vertical. screws 50 and 51, those 50 having a running bearing on the longi- 4 tudinal form. bar 52, and those 51 having a running. bearing on the longitudinal form bar '53 'at the rear of the machine, the form bar 52 being stationary while-the form bar 53" has in conjunction therewith mechanism 7 lfor elevating: it, .holding "it elevated for a period andv then causing: the; lowering thereof to carry it downwardly out of position: of engagement with the adjustable bearing members 51, 51, so that the'bearing members 50, 50, may be letdown to running v 55 whereby through inclined plates or cams v59 and 60, whicharesupported atdi-fferent or portions of the length of the machine by r the rail 61, the positions of the latches are controlled so that :atproper times they may .5 engage the, shoulders 56 and 57 onthe rack The said latchesbarand 'atproper times be forced to posi V tions of disengagement with such shoulders f i in manner to be hereinafter more PaItlClL-ylarly explained.

The pinion 38is embraced by ship oer lerer6 3 connected Ibypivot :64: to the eft'jf hand endportionof thefr'ameof the chine and havingian extension to the right; ward? and to the leftward o1":- llhQPHllOH+- the rightward extension zhavingzan. incline. 1 5

orca-m 65 and the leftward eXtensionrhavg ing an incline or cam 66. 1 V a 67 represents a dog ,adjustablysecured by set screw 68 on the leftihand end portion gof the rack bar, and whichlwhen the rack bar. '3 is driven by theypinion to the requiredlimitp of itsmovement to the right by impingement a I on the incline 66 0f the-shipper -lever163, causes a degree of swingingof such lever'ito" carry thepinionout of clutch with the wheel. 135- 3 3 and; for an: instant to stop the movement 1 of the rack bar and the feed of one ofthe cutters which at that time is in engagement therewith. The shipper lever has a depending lug 69 to which isconnected a link '70 a a which is also connected to an upright arm-TI connected by pivot 72 to a hired part 7310i;

the frame and provided at its upper end with a weight 74:. p r 7 Referring to Fig. kit is observed that the 1 pinion 38 is in its position just asit is being.

moved to =the rightward and having its clutch member39 drawn outct'rom engagement with. the clutch member 35 of the wheel 33 through j tllOilCtlOIlqOf the do g 67 on the incline 1666f 1109;

the, shipper lever. I

The final movement of the pinion toward the front; of .the'machirie to fully disengage the same from theclutch 35 of the wheel 33. 1 is through thearrangement and adjustment of the connectioni'70 with: the lever 71 such as to tilt. the lever with its weight T l-slightly upwardly andnrearward-ly beyond the deadfi center, whereupon;the weight becomes efleci i tive to further swing the lever to a greater? 0' upward and rearward inclination so that the 1:

lever becomes the means for further swing; ing the p nion shifting lever 63 and causing.

- the pinion to'clutchat 36 withlthe collar 37' V which is a unitary :part'oit thewshaft 31 and securing the reversed travelingvmovement of 5 the rack bar, that is. now fromright to left:

Vfhenthe :rack bar reaches its" required? leftward limit of travel, carrying the cutters in corresponding direction 1 and in their 1905 proper succession the'adog. 74:-which is se cured by set screw; 7 on an intermediate! part-0f the rack bar, has: an: impingement i 1 against the cam incline-65 at the right hand 7 end of the shipper lever and causes} the swinging of such lever so that itspinion en-i=1 gaging portion is moved tothe rearwardand causes the pinion tobe thrown out of clutch with the shaft carried clutch member ands .toward, but not fully into clutch .withl the shaft. The lever 79is held in its forwardly wheel 33, theparts again assuming positions approximately the same asin Fig. 4.

In order that thelever 71, which is pro is provided and which will be now described. r 77 represents a cam which is loose on the shaft 3l and which by gravity has a'normal position with its prominent or radially distended portion down-hanging as shown in Figs. 3 and 4.- The hub of the loosely mounted cam is provided with a groove 78 with which engages the bifurcated upper. end or yoke of a lever 79 which by pivot80 is connected to a fixture of the frame to'swing in a rearwardandback to a forward position parallel with the shaft '30 and to move the cam, changing the position thereof along the swung position to maintain the'cam 77 correspondingly forward by the spring 80. The lever 7 9 has an extension Siprojecting horizontally leftward, provided with a fixed upstanding rod 82 to the upper portion of which a link 83 is connected, and to the forward end of which link the arm 81 of the bell crank lever is connected, the other arm 85 of the bell crank lever being pivoted at 86 on a fixture of the frame, and its forwardly extended portion 85 has a position closely to and across the top of therack bar i2, as shown in Figs. 1 and 2.

- 87 represents a more or'less nearlyhorizontal lever connected to a bracket of the frame by the pivot 87 and lying across the top of the cam 77, this lever being provided with an upstanding angular arm 87 to the end of which is connected a chainor other flexible connection 88, which frame has a depending course to guidance half way around a sheave 89 and thence forwardly under the machine to connection, through the medium of the spring 90 with the rod 91 which is of such lever; said rod 91 is guided loosely through the hanger bracket 92 and supported by the frame.

On the rear endof the shaft 3l'is a disk provided with an eccentrically arranged stud which is revoluble'in a plane 'adjacent the rear face of'the cam. The cam has on its rear face a projecting lug 94 oppo site the circular path of: the revoluble stud 93. The rack bar being driven in its return or right to left movement approaches the limit of such movement; and concurrently with the dog 74c forcing the pinion shifter lever 63 to move the pinion to its intermediate or idle clutch,the "said dogalso engages the forposition,out of fwardly projecting "arm 85 and "through the describedconnections slides the cam rearwardly on the shaftfto carry the projection -94 thereof across the pathof-the constantly revolving ,stud- 93 so that shortlyv thereafter the stud engaging the cam lug will cause an overturning of the samefso that the high part thereof is uppermost. This cam having such movement,.sw1ngs the :lever 87 and itsarm 87? upwardly,

imparting a draft to the chain and a pulling movement on the lever 71 sufiicientfto tilt it upwardly and forwardly, whereupon the weight caused to have a positionforward of the dead center 72 swings the:

lever forward, causing a movement of the.link-70,connected below the pivot 72,.-

leftward and slides the pinion into clutch with the gear wheel 32 so that now the rack bar 42 will commence again its left to right movement for effecting the feed ofthe cutters. In the interval'while the pinion remains in its intermediate and idle position and there is no feeding. movement of the cutters, the-operative has time to move the'finishedturned piece and center support anew blank on and between the spindles. Shortly after the placing of the pinion 33 in clutch with the wheel 34:, causing a traveling movement of the rack bar to the rightward, the

dog 74 recedes from engagement with the lever arm 85 and permits the cam shifting lever 79 to be forwardly drawn'by the re tracting spring 80 out ofthe path of the revoluble stud 93 so that the cam after having .its prominent portion carried to the form bar 53. connected with the lower end portion of the weight carrying lever 71 below the pivot 72 i The forward form bar 52 is mounted to have a fixed position, but the form-bar 53' is capable of bodily vertical movements for this'reason: \Vhen the rackZbar-is'moving' to the rightward for the first, cut bythe trols the tilting'of the carriage 45 is such that thecutter 4c3is not permitted to swing down toward the axis of the blankas far as is the cutter 44 permitted to swingtoward such axis by the adjustment of the'screw 5lwhich controls the extent of the t1lt1ng movement of the carriage 4L6on'wh1chthe cutter44 is mounted.- Thus after the rack bar has made its run to therightward,the cutter 43 first working'onthe blank to'be followed by the cutter 44 lWhich' turns thestockrsomewhat deeper,--the movable form 7 bar 53 is let-down to a lowered position: so.

that the adjustablescrew 50 maybe let down 7 for traveling and bearing engagements on to the leftward it will permit the cutter 44- the form bar 52. 1

The-adjustable screw 50 appurtenant to the cutt'er carriage 46E is to be adjustedso:

that on the return movement of the cutters "ment; and thenion the following of the cutter 43 "in its return movementto the leftward it is caused to cut still deeper than was done by the cutter 44. These effects are secured by the proper relative adjustments of the screws 50, 50, appurtenant to the. respective cutter carriages and; relatively to the fixed form -bar:52. r

The form bar-53 has depending posts 95,

95, which v play through vertical guide brackets 96supported at the rear of the machineframe. This form bar rests onoscillatory cams 97 which-arehung for their swinging movements on the fixed p1v0ts 98, 98.

VThe cams 97 have depending tangential arms 99; 99', with'both lof which therod 100, a parallel with'the [form bar, hasconnections 5 bypivots 101, 101.5 The rod 1100 is bylinki 102'connected to a more orlless nearly vertical lever 103hung at its upper end by pivot 5 104 to a fixture ofthemachine and having I its intermediate portion against the edge of p ginning of the next operation of the ma- 105 the cam .77.

In Fig. 8 the cams are shown; as in the a position to permit the form bar 53'to bein its lowered position; the depending cam arms 99 being inclined downwardly andslightly toward the end of theimachine at which the cam 77 T is located, the partsabeing under the stress of'theweight ot'the form 1 bar 53 so that the link connectedlever 103,

is kept against the edge-0f the cam.. 105 represents a fixed'horizontal member I suitably supported'on the back of the machine frame. a

a The rod .100, has a bracket 106 atfixed thereon and depending therebelow, through which is artransverse rock shaft 107 at the rear orouter edge of which is" an upstanding ;rod-108,1 while inwardly therefrom, afliXedon such rock shaftl107,' is another rod 109 'GXtGHdQClIIlOI'GOI less horizontally and longitudinally of the machine and having a notched shoulder 110 near its free end a for engagement with the aforementioned member 105.

Q When the cam 7 7 is' turned, arounchas has 1 beenbeforedescribed, itfforces the lever 103 the spindles.-

toward S'the tailend lofath'e machine? and l through the link l02g !corresponding1y forces the=rodrl00 in the same;'dir ec;tion, with the: result of so swinging the cams 97"last0 ele-z vate thefo'rm bar Z 535 Therod'100 having ryo 1 its endwis'e 1 movement as; describedvcarries thepivotally connected latch "member 1109 a so that the same 'may gravitatively click; or:

chine. an:action transpires which causes the to release of the. latch: ll0 -and the lowering of the cams 97, and'thedetting down ofithe;

form bar 53' to the position shown in Fig 3. The latch. release is, accomplished by :means of a depending' memben 111 carried by'thei 85. weighted lever extension 49 appurtenant to r the tiltable, carriage 46 tor"the-cutter44., a

Vl hen'the carriage 46 'hjas carried the; cut+ ter to its limit away from the chead'end iof themachine and is about to retrace toward 7 such end, the member @111 ciabuts against the upstanding rockable; rod 108: oscillating the rockshaft 107 ,and swinging the latch 1110a upwardly out from itsengagement. with the catch-member 105,-the position of the parts 1 now beingas seem in i Fig. 3, and. it being;

1 understood that as the; carriage is IHOVQCItO-l wardthe head of the machine and the meme her ,111 ipasses away {from engagement with? the member 108, the flatten automatically swings ,to let the member 109 igravitatively swingydown-rto restona the catch member 5 in readiness'to have the torm bar elevating devices again i. operated and reset at the abe-:

chine.= I 7 On the'motion ofthe rack'bar to thei-righte ward, the traversehof the cutter carriage 45 commences its movement and nearly or quite: a

carries itscutter43 to theirightto thei end 51:110. of the blank engaged by the end of the tail spindle 93 before thecutter carriage 46 com-: mences its movement, for causing the trave erse of the cutter 44= for the i second cut LOH theblank; and then onthe reverse traverse =11a befo'rethe cutter carriage'45 begins itsmove; 12o:

ment -so that both'cutterswill not :ne'cesv sarily -be operatingi onZthestock at the same time, as in; some cases would causeithe' Sh pf ping of the. stock held by and relatively to i a a '12; W hen' the rack :bankcommences its move-.

1 ment lto the right the;;carriage 46 iisyuny lockedfrom; the doga-577'and the .dog sccone siderably to the. leftward thereof. The car? riage 45 is at this jtlme rconnected withiithe r1130 rack bar by the latch 54. After thecarriage so latched has made its'pass along the stock to and beyond the end thereof, the, latch 54 is released by its engagement with the fixed cam 60 and 'the'dog 56 is permitted to pass to the rightward beyond the latch (Figs. 1 and 2).

The dog 57 in moving to the rightward, i

arriving at the location of the latch .55 becomes engagedwith the carriage 46 striking the collar 46 and forces the carriage to the rightward until the latch 55 movable from the cam 59, whereupon the latch gravitatively falls into engagement with the'dog so that on the return movement of the rack.

' bar the carriage 46 will move therewith before the, carriage 45 commences its movement. The rightward nmotion of the carriage 45 having been stopped and the carriage 46 in its rightward movement having moved closely up to the carriage 45 (asseen in Figs. 1 and 2), on the reversing movement of the rackbar the carriage 46 by reason. of being connected by the latch moves to the leftward or past the leftend of the blank, engaged by the head spindle 20, and

the latch thereafter becomes disengaged by the coaction therewith of the; cam 59. In

the leftward movement of the rackbar there is a lost motion by such bar relatively to the carriage 45 until .the dog 56 encounters the collar 45 on the right hand portion of the carriage and forces the carriage to the leftward. The leg 54 of the latch 54 on passing away from its engagement withthe cam. 60 gravitatively operates the latch to interlock with the dog 56. of the rack bar so that on the next right hand operation of the rackbar the carriage 45 will have itsmoVement before the movement-in the same direction of carriage 46 commences.

On the stationary form bar 52 at the pori tion opposite the tail stock 24 1s a raised pore tion 52 with which the screw or. bearing member 50 of the arm 48 appurtenant to the 'c-arriage 45 impinges after the cutter 43- has passed, in its turning action, beyond the blank. This causes the upswinging of the cutter 43 to the position relativelyto the 9 cutter 44 shown in Fig. 5, so that the cut-- ter 43 clears the bearing support or tail stock 44,-this capability being desirable as the machine is designed, inasmuch as the ends of the cutters are necessarily comparatively near the axis of the stock supporting spindles. j

Briefly summarizing the operations of the various mechanisms comprised'in the machine: lien the carriages are in their po sitions toward the head end of the machineopposite those shown in-Figs. l -and 2,1the pinion is in clutch with the wheel33 for the driving of therackbar to the rightward. At this time of the commencement ofthe'operariage46, and as the carriage 46 reaches its right hand limit the member 1 11 appurtenant to such carriage efiects the dlsengagev moves to the rightward followed by the car,

ment of the catch 110 from'the engagement member 101 and permits the release and lowering of the cam elevated and cam supporte d form bar 53. The pinion is, when the. rack bar reaches the desired limit of rightward movement,- shifted forwardly to engagement with the shaft carried clutch member 37 by theac tion of the dog 67 on the shifter lever "63, the weighted'lever.71 coiiperating infthe pinion shifting-action andthe rack bar has its return'movement to .the leftward, the j movement of the carriage 46' first beginning, to'be then followed by the carriage .45, which afterthecarriage 46 is 'unlatched, nearly overtakes such carriagebeyond the spindle 20 and about opposite the head stock. The l dog74 coacting with the right hand inclined portion of the pinion shifter draws the pin ion to its intermediate idle position, causing. the cessation ofthe rackbar movement, and leaving the carriages to. dwell. The dog 74 encountering the lever. 85, efi'ects the positioning of the slidable ca1n7 7,'whereby it issubject to the engagementof the shaft carried revolublestud 93 and caused to both elevate and. reset the movable form bar and to overbalance theffupstanding weighted lever, for swinging it from its veryslightly rearwardly upwardly tilted position to its upwardly and forwardly tilted position, effecting the positive carrying of the slidable pinion to clutch with the wheel .33 and the 1. In a turning machine, stock supporting and'rotating means, cutters, and means for moving them one ahead of the other for action. on the stock, means for causing the following cutter; to operate nearer the stock axis than the leading cutter, means for reversel movin the cutters and means for 2(In a turning machine, stock supporting and rotating means, a cutter, and means for moving itin-one directionalongthe stock,

a second'cutterand means for movingfit in the same direction along the stock after the firstcutter has reached the location ofthe startingof themachinefor its next opera- 'i far end of the stockymeans forreversely moving the second namedcutter, means for reversely moving the first named cutter after theseccnd cutter has, reached the end of the stock first "operated; :on, and means for so controlling the positions of the cutters in their back and forth movements that the relatively following one operates nearer the stock axis than the one-moving in advance thereof; 7 I 1 3. In a turninggmachine, in combination, stock supporting androtating means, a car riage having a cutter, slidably mounted parallel with the aXisof the stockiand mov- "able' to present'the cutter variably near the stock axis, means for imparting forward. and return movements to the carriage, a *pair 'of form bars, one of Which is shiftable, the

carriage coaetingffor its position control withone of the bars While moving 11110119 direction, means fo'r changing the position-- of the shiftable form bar, whereby on the reversed movement :of the carriage it will coact with and be position-controlled by the otherform bar, and 'means for reshifting the position' of the movable form bar atthe end 101": the reversed Imovement of: the carriage.

V 4:. Ina turnmg machine, in combination, stock supporting and rotatmgmeans, a carriagehavmg a cutter, a round longitudinal rail on'which thecarriage is mountedfor sliding movements parallel with the axis of the stock and on which it has swinging movements to present the cutter variably near the stock axis, alongi'tudinal bar parallelwithsaid rail and with which the carriage has connection, means forimparting" back and forth movements to said bar, a. pair of for m bars, one, of which is shiftable, the carriage coactingfor its positioncontrolwith one of'the bars While moving in one direction, means for changing; the position. of the shiftabler'corm bar, whereby. on the reversed movement of the carriage it Willcoact 'With and be position-controlled by the other form bar, and means for re shiftiing ;the position of the movable form 1 bar at the end of the; reversed movement of the carriage.

5. Ina turning machine, in combination, stocksupportlng and rotating means, a pan of cutter carriagesslidably mounted for.

movement longitudinally and parallel with the axis ofthe stock a longitudinally rang ing bar and means'fo'r imparting ,backand forth movements thereto, latches mounted on,.andalso movable relatively to, the carriages and adaptedjfoirdetachable engage: ments With said bar, and stationary cams at different positions in the length of the ma chine relatively to one of Whichthe latch on one carriage coacts in the forward .mOvement ofisuch carriage, and relatively to.

which the latch of the other carriage co-- cam loose onsaidishaft, and means period acts: on the reverse zmovement rof %the bar," whereby as the carriages {are caused. to have i their sufficiently long traverses: relatively to Y the stoclrtheemovementof.the one carriage? continues for a periocl aztter the termination ahead thereof, 7 6. In ja turn1ngmach1ne, in combinations a frame, stocli supporting, and ii rotating; i1 '75, 7

means mounted thereon," a round longitu dmal ra l supported :byvg the frame, a ap'alr of cutter 'carri-ag'es' slidably mounted for movement {along i. said rail and adapted lto swingrelatively to saidarail, alongitudinallyf rangingbar andmeans for;-imparting;back andvfor'th movements thereto, said bar, hav'5"' 7 ing dogs at different; portions'of the length thereof, latchesicarriediby and? adaptedftof' swing relativelyto the. carriages, to engag. with and 1 disengage from; said dogs, E having cam engagementiflmembers, and" sta I tionary cams located atzdifierent-portio'ns 'i'n; the length? of themachine frame] with which the latches of the, 'carriag'esalternately coaeti 7 In a turning machinegin zcombin'a't-iom' stock supporting; and rotating ;means, a cut 'ter carriage slidably mountedfor longit'ui dinal movement "and i also for a rocking] movement, and having 7 a transversely; ex{ tending arm, {LPQII of ilongitudlnallyrang? I ing form bars, one of-z'vvhichf is fiied,-'and the] other of which is movable to be raised' qand lowered, means. for imparting; longitudinal backward' and 3 forward movements to} the carriage, membe'rson thearm of. the carriage 109 i for engaging:the' relatively higher one, of the form bars in:th'e movement of the carf riage' in a one direction and for, engaging the lower one of the formgrbars'in, itsreversed, movement,1"al constantly rotating, shaft;

cally operable and concurrently with :p-the end or thetraverse fOf- :thecarria'ge :in: one direction, causing: its engagement Withand l to be revolubleby said; shaft,fmeans actuatedby thefsh'aft engaged cam and' operable'z to effect fqth'e elevation .of the vertically am'cw Y ableivformjbary and'mea'ns for temporarily 7 I and forward movements to ther carriage; k

members on the arm of; the carriage for en gaging the relatively higher one of the form 3 bars in the; movement: {of the carriage iIi:;- one direction "and iifor 1 engaging; the lower v. one of the rormx bars an *its reversed T moveof themoveme'ntfofjthecarriage relatively V V SC i ment, a. constantly rotating shaft, a cam loose on said shaft, means periodically operable and concurrently with the end of the traverse of the carriage in one direction, causing its engagement with and to be revoluble by said shaft, means actuated by the shaft engaged cam and operable to effect the elevation of the vertically movable form bar, means for temporarily confining the form bar in its elevated position, and means appurtenant to the carriage and operable at the termination of the traverse of the carriage in the reverse direction for releasing the said temporary confining means, leav ing the form bar free to descend to its lowered position.

9. In a turning machine, in combination, stock supporting and rotating means, a cutter carriage slidably mounted for movement longitudinally and parallel with the axis of the stock and also for a rocking movement, and having a transversely extending arm,'a longitudinally ranging fixed form bar and a longitudinally arranged form bar which is vertically movable froma position lower to a position higher than the fixed form bar, a

pair of cams pivoted for oscillating and provided with depending members on which cams the movable form bar is supported, a

rod arranged below and parallel withr the movable form bar and pivotally connected with said depending cam members, a constantly rotating'shaft, a cam loose on said shaft and means periodically operable and concurrently with the end of the traverse of the carriage in one direction for causing its engagement with and to be revolved by said shaft, a swinging lever coacting with the cam, a link connected to said lever and to SAMUEL PAQUETTE.

Witnesses:

G. R. DRISCOLL, J. D. LONG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

